chore(ci): bump docker/setup-buildx-action from 2 to 3 (#57)

Bumps [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action) from 2 to 3.
- [Release notes](https://github.com/docker/setup-buildx-action/releases)
- [Commits](docker/setup-buildx-action@v2...v3)

---
updated-dependencies:
- dependency-name: docker/setup-buildx-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/release-container.yaml

@@ -99,7 +99,7 @@ jobs:
         uses: docker/setup-qemu-action@v2
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
+        uses: docker/setup-buildx-action@v3
 
       - name: Verify Dockerfile using cosign
         run: cosign dockerfile verify --certificate-oidc-issuer ${{ inputs.cosign-certificate-oidc-issuer }} --certificate-identity-regexp ${{ inputs.cosign-certificate-identity-regexp }} ${{ inputs.cosign-base-image-only && '--base-image-only' || '' }} Dockerfile > /dev/null